Improved abrading wheel

Abstract

The present invention discloses an abrading wheel comprising a circular core having an outer periphery, a rim arranged orthogonally to said circular core on said outer periphery, said rim comprising an inner surface and an outer surface, and a grit material disposed on at least part of said outer surface. Further, a plurality of openings are arranged in the core for providing an airflow directed towards the inner surface, and wherein the outer surface of the rim is provided with a plurality of grooves, and where a main part of the grit material is disposed on said outer surface of said rim on spaces between said grooves. Thereby, the abrading wheel is cooled during operation, heat is more easily dissipated, and accumulation of particles from the product being grinded is minimised.

1 . An abrading wheel comprising:
 a circular core having an outer periphery,   a rim arranged orthogonally to said circular core on said outer periphery, said rim comprising an inner surface and an outer surface, and   a grit material disposed on at least part of said outer surface,   wherein a plurality of openings are arranged in said core for providing an airflow directed towards said inner surface, and wherein the outer surface of said rim is provided with a plurality of grooves twisting around a central axis of the abrading wheel and arranged in a helix or tilted relative to the outer periphery, and where a main part of said grit material is disposed on said outer surface of said rim on spaces between said grooves, whereby particles formed from a product being grinded are guided away from the abrading wheel along said grooves.   
     
     
         2 . An abrading wheel according to  claim 1 , wherein the circular core comprises a central axis and a central aperture for mounting the abrading wheel on a rotation tool. 
     
     
         3 . An abrading wheel according to  claim 1 , wherein the cross section of the grooves are V-shaped. 
     
     
         4 . An abrading wheel according to  claim 1 , wherein the plurality of grooves are arranged in a helix having an axis collinear and coinciding with the central axis. 
     
     
         5 . An abrading wheel according to  claim 1 , wherein the plurality of grooves are tilted relative to an edge of the rim. 
     
     
         6 . An abrading wheel according to  claim 1 , wherein the plurality of grooves are arranged parallel to each other and parallel to the outer periphery of the circular core. 
     
     
         7 . An abrading wheel according to  claim 1 , wherein the rim is a ribbon mounted onto the outer periphery of the circular core along an edge of said ribbon. 
     
     
         8 . An abrading wheel according to  claim 1 , wherein a tongue is attached to each opening of the circular core, a plurality of tongues thereby being arranged in said circular core. 
     
     
         9 . An abrading wheel according to  claim 1 , wherein the tongues are formed from excess material bent away from the openings, the tongues thereby being an integral part of the circular core. 
     
     
         10 . An abrading wheel according to  claim 1 , wherein the tongues are oriented such that air is forced onto the inner surface of the rim, thereby providing air cooling to the abrading wheel. 
     
     
         11 . An abrading wheel according to  claim 1 , wherein the grit material forms an overhang above said grooves. 
     
     
         12 . An abrading wheel according to  claim 1 , wherein the grit material is tungsten carbide 
     
     
         13 . An abrading wheel according to  claim 1 , wherein the grit size is between 14 and 220. 
     
     
         14 . An abrading wheel according to  claim 1  any of the preceding claims, wherein said abrading wheel is mounted onto a rotation tool, said rotation tool being capable of providing rotation around a central axis of the abrading wheel. 
     
     
         15 . An apparatus, comprising:
 a wheel with a central axis, a top, a bottom, and an outer, peripheral surface, the wheel including grooves arranged transversely across the outer peripheral surface from the top to the bottom, the grooves have an angle relative to the central axis, the wheel also having openings disposed in a circular pattern and penetrating between the top and the bottom; and   grit material disposed on the outer peripheral surface and covering space formed between the grooves and the top and the bottom of the wheel.   
     
     
         16 . An apparatus according to  claim 15 , wherein the grooves are disposed in a helix pattern. 
     
     
         17 . An apparatus according to  claim 15 , wherein the grit material overhangs into the grooves. 
     
     
         18 . An apparatus according to  claim 15 , wherein the grit material overhangs into the grooves from both sides. 
     
     
         19 . An apparatus according to  claim 15 , further comprising:
 covers disposed only partially over each of the openings in the wheel.   
     
     
         20 . An apparatus according to  claim 15 , further comprising:
 covers disposed only partially over each of the openings in the wheel, the covers arranged at an angle relative to the top and the bottom of the wheel.